# FM transmitter SENCOR SWM3535BT with Bluetooth V4.2, USB, TF card support, DC 12/24V, 87.5–108 MHz

**URL:** https://aio.lv/en/product--sencor-swm3535bt--10724996
**Data updated:** 2026-01-13 17:31 (EET)
**Category:** FM Transmitters
**Manufacturer:** SENCOR
**Manufacturer code:** SWM3535BT
**EAN:** 8590669285556
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

SENCOR SWM3535BT is an in-car FM transmitter with Bluetooth V4.2 for wireless audio streaming and hands-free calling. It plays MP3/WMA/FLAC/WAV from Bluetooth, USB flash drive or TF/Micro SD (up to 32 GB) and features two USB ports (one for music playback, one for charging, 5 V/2.4 A max). The device offers digital tuning across 87.5–108 MHz, memory of last frequency/track/volume, volume and track controls, an integrated microphone, yellow LED display, voltage meter, and works from 12/24 V car power.

## Long description

Portable FM transmitter SENCOR SWM3535BT provides wireless audio streaming via Bluetooth and plays MP3, WMA, FLAC and WAV files from USB flash drives or a TF/microSD card. Designed for use in cars, it transmits audio to the vehicle radio and supports hands-free calling through the built-in microphone and call-answering via the car stereo. The unit also includes two USB slots (one for music playback, one for charging), a yellow non-shining LED display and a digital frequency tuner with memory for last frequency, track number and volume.
Advantages
The SENCOR SWM3535BT supports Bluetooth 4.2 for stable wireless connection and includes dual USB ports to separate music playback and charging. It accepts TF/microSD cards up to 32 GB and plays common audio formats (MP3, WMA, FLAC, WAV). The device offers hands-free calling with an integrated microphone, simple playback controls (pause, previous/next) and a voltage meter to monitor the car power supply. Its compact dimensions (38 x 70 x 48 mm) and lightweight construction (27 g) make it easy to install and store in the vehicle.
Suitable for
Playing music from smartphones via Bluetooth
Playback of MP3/WMA/FLAC/WAV files from USB flash drives
Playback from TF / microSD cards (up to 32 GB)
Hands-free phone calls through the car stereo
Charging mobile devices from the car (DC 5 V / 2.4 A max.)
Key specifications
Model: SENCOR SWM3535BT
Supported formats: MP3, WMA, FLAC, WAV
Connectivity: Bluetooth 4.2, USB, TF/microSD card slot (up to 32 GB)
USB slots: 2 (one for music playback, one main for charging)
FM transmitting range: 87.5–108 MHz; number of frequencies: 206
Power: DC 12/24 V (car power plug); USB charging output DC 5 V / 2.4 A max.
Controls: volume, pause, previous/next, digital tuning and frequency display
Additional features: wireless hands-free, call answering via car stereo, microphone, memory of last frequency/track/volume, voltage meter
Display: yellow non-shining LED
Dimensions (W×H×D): 38 × 70 × 48 mm; Weight: 27 g
How to use
Plug the FM transmitter into the vehicle 12/24 V power socket. Select an unused FM frequency on the transmitter using the digital tuner and tune the car radio to the same frequency. Connect your smartphone via Bluetooth 4.2 or insert a USB flash drive (MP3 slot) or TF/microSD card to play stored audio files. Use the device buttons to control volume, pause and track selection. For hands-free calls, answer calls through the car stereo; the built-in microphone will handle voice transmission. Use the main USB port to charge another device while audio playback runs from the designated music USB or TF card.
Usage recommendations
Choose an FM frequency with minimal interference for best audio quality and keep the transmitter and smartphone within typical cabin range to maintain a stable Bluetooth connection. Do not exceed the specified USB charging current (DC 5 V / 2.4 A) for connected devices.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SENCOR products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SENCOR service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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